Abstract

Vertical-emitting microcavity pillars with a type of GaInAs quantum dots within a one cavity have been realized based on high reflectivitydistributed Bragg reflectors. High-quality factors were achieved due to an improved fabrication technology with a maximum quality factor of 27 700 for a micropillar with a diameter of . The dot dimensions could be enlarged by one order of magnitude using a low strain nucleation layer.